Clear, distinctive, believable: three separate questions.
A tagline that reads well internally can still fail on any one of the three things that actually matter: whether its meaning is obvious, whether it's distinctive enough to be recognisably yours, and whether it feels credible for the brand.
Why a single "do you like it" question isn't enough
A tagline can score well on likeability and still be a poor fit for the brand, or read clearly but sound like it belongs to a different category entirely, or sound distinctive but not actually mean anything concrete. Testing clarity, distinctiveness, and believability separately surfaces which of these is actually the problem, if there is one.
What tagline testing covers
- Clarity: is the meaning obvious on first read, without needing it explained
- Distinctiveness: the swap test, placing the line on a rival's creative to see if respondents notice it doesn't fit
- Believability: does the claim or tone feel credible for what the brand actually is
- Response timing on each, since a line that takes noticeably longer to parse is telling you something about clarity even if the eventual answer looks fine
Comparing candidates directly
Run the actual line being tested against the standard question set, shown to respondents directly on the campaign page. Test multiple candidates as separate campaigns and compare clarity, distinctiveness, and believability scores side by side before committing to one.
About tagline & message testing
What specifically gets tested on a tagline?
Clarity (is the meaning obvious), distinctiveness (the swap test, would it survive being placed on a rival's advert), and believability (does it feel credible for the brand), three separate questions.
Can I test more than one tagline option?
Yes, run the same question set against each candidate and compare results side by side.
Does this work for a full messaging platform, not just a tagline?
The core questions are built around a single line under test, but you can add up to two custom questions per campaign to cover broader messaging points specific to the project.